[GUIDE] How to flash a dead Lumia 800 RM-801

[bypx]

Tried today to debrand my Vodafone italy Lumia 800... the flashing with Nokia Care Suite stops at 50% and the phone stuck in flash mode.

The last Nokia Care Suite (2011.51.2.63048) can't flash RM-801 in dead mode so i shat my pants.

Reading the care suite docs carefully i've found this:

Recovery Flashing enabled for RM-817

So after few tries i've found the right way:

Create a RM-817 dir under \Products folder, like this:



then copy RM-801 firmware files in RM-817 folder:



Now open the Care Suite and select the right model (RM-817):



Select Recovery:



Select the correct flash file, remember to use always the latest version, check on "Data package manager" for updated firmwares.



follow the instructions on screen:



When you are ready connect the phone holding the volume up button and let the care suite do his job:



After few minutes:

 

[Briefcase]

Good find!

Can you read your product code after this recovery procedure? Maybe with this procedure it actually gets changed to the debranded product code. Thanks for checking.

 

[chaihg]

Fantastic guide. Thanks a ton for this guide.

 

[bypx]

Good find!

Can you read your product code after this recovery procedure? Maybe with this procedure it actually gets changed to the debranded product code. Thanks for checking.

Yes, it changes because if I select "Refurbish" the nokia care suite automatically selects the unbranded firmware.

 

[Briefcase]

Yes, it changes because if I select "Refurbish" the nokia care suite automatically selects the unbranded firmware.

Are you sure? So it selects the unbranded firmware [which you didn't rename to fit your branded product code]?

If so then you have just found a way to truly debrand the Lumia 800 because with the refurbish option it won't change the product code. That's why for refurbish flashing you needed to rename the files.

With the product code changed your device is just like an original debranded phone, so it should be updateable using Zune without a problem (this may have been a problem with the previous method).

Nice!

 

[bypx]

Are you sure? So it selects the unbranded firmware [which you didn't rename to fit your branded product code]?

If so then you have just found a way to truly debrand the Lumia 800 because with the refurbish option it won't change the product code. That's why for refurbish flashing you needed to rename the files.

With the product code changed your device is just like an original debranded phone, so it should be updateable using Zune without a problem (this may have been a problem with the previous method).

Nice!

As you can see, the firmware in the RM-8XX folder have product code 059L820 (RM-801_CV_IT_SWU204940_Black_v2)

The phone originally was 059L705 (RM-801 Vodafone IT IT VAR204289 black V3)

 

[chaihg]

As you can see, the firmware in the RM-8XX folder have product code 059L820 (RM-801_CV_IT_SWU204940_Black_v2)

The phone originally was 059L705 (RM-801 Vodafone IT IT VAR204289 black V3)

Then I think you deserve a Nobel Prize my dear friend.

 

[bypx]

Then I think you deserve a Nobel Prize my dear friend.

the proof of original product code

 

[Briefcase]

This is very nice

 

[syvakma1]

Great discovery but no Nobel vote from me. Product code is the same than was originally.

 

[bypx]

Oh sh1t syvakma1 is right. I've installed nokia care suite in virtualbox (@home i'm on a mac) and the product code is the Vodafone's one. Dunno why "Refurbish" worked with no brand firmware

 

[filippino]

sorry but i can't flash using care suite...
i have grayed the function "recovery"
if I go on "multi software updater" i see RM-801 not supported...


whyyyy ??!?!?!?!??

thanx to everybody

 

[bypx]

sorry but i can't flash using care suite...
i have grayed the function "recovery"
if I go on "multi software updater" i see RM-801 not supported...


whyyyy ??!?!?!?!??

thanx to everybody

there is a guide with screenshots in the previous page..

 

[Briefcase]

Oh sh1t syvakma1 is right. I've installed nokia care suite in virtualbox (@home i'm on a mac) and the product code is the Vodafone's one. Dunno why "Refurbish" worked with no brand firmware

Ah so it doesn't change the product code? Too bad .

 

[djtonka]

I made video tutorial and also downgrade is possible!!!!
http://www.youtube.com/watch?v=iudpmTs8Le0

 

[mdajansen]

Thanks to this method I managed to restore my UK T-Mobile Lumia 800.

Flash failed trying to refurbish original T-mobile black rom (updated via Zune to .1500) RM-801_059L7H0_1600.2475.7720.11414 with Nokia UK black RM801_059L7C2_1600.2483.8107.11501.

Didn't capture the error, but it complained about something already being on the phone..

 

[mobilelord]

i cant get past the part where you have to unplug the phone, power off, plug in again and power on with volume up... do you have to continue pressing the button till the phone vibrate? i don't get it...
my intention is to get rid of the demo content...

 

[fletcher1989]

What is the need for debranded firmware? Sorry if that sounds dumb, however im new to this whole scene. Been in iOS for ages so time to start learning.

 

[lifegood8]

lumia 800

lumia 800 found (qualcomm cdma technologies msm) how sovle this plz help

 

[_Madmatt]

What is the need for debranded firmware? Sorry if that sounds dumb, however im new to this whole scene. Been in iOS for ages so time to start learning.

To use your phone on another carrier, or to get updates faster. Because if your phone is branded by let's say T-Mobile, you have to wait untill they push an update. Eventually every carrier has to push an update (so it's not like on Android) but with a debranded phone you're just sure you get it when it's released and not months later. Last advantage: you don't get all the crappy apps that carriers include